nix/modules/monitoring/prometheus.nix
2024-11-06 12:10:37 +01:00

95 lines
2.2 KiB
Nix

{
config,
pkgs,
lib,
...
}:
with lib;
let
cfg = config.my.monitoring.prometheus;
in
{
options.my.monitoring.prometheus = {
enable = lib.mkEnableOption "Enable prometheus as a data scraper";
proxy = {
enable = lib.mkEnableOption "Set the proxy entry for this service";
domain = lib.mkOption {
default = "example.com";
type = lib.types.str;
description = ''
The domain where Caddy is reachable
'';
};
host = lib.mkOption {
default = "localhost";
type = lib.types.str;
description = ''
Host name where the Prometheus is running
'';
};
};
};
config = lib.mkMerge [
(lib.mkIf cfg.enable {
services.prometheus = {
enable = true;
scrapeConfigs = [
{
job_name = "download-mgr-stack";
static_configs = [
{
targets = [
"localhost:${toString config.services.prometheus.exporters.exportarr-prowlarr.port}"
"localhost:${toString config.services.prometheus.exporters.exportarr-radarr.port}"
"localhost:${toString config.services.prometheus.exporters.exportarr-sonarr.port}"
"localhost:${toString config.services.prometheus.exporters.exportarr-lidarr.port}"
"localhost:${toString config.services.prometheus.exporters.exportarr-readarr.port}"
];
}
];
}
{
job_name = "caddy";
static_configs = [ { targets = [ "caddy.internal:2024" ]; } ];
}
];
};
services.grafana = {
provision.datasources.settings = {
datasources = [
{
name = "Prometheus localhost";
url = "http://localhost:9090";
type = "prometheus";
isDefault = true;
}
];
};
};
networking.firewall.allowedTCPPorts = [ 9090 ];
})
(lib.mkIf cfg.proxy.enable {
services.caddy = with cfg.proxy; {
virtualHosts."prometheus.${domain}".extraConfig = ''
reverse_proxy http://${host}:9090
import cloudflare
'';
};
})
];
}